649673092 has 12 divisors (see below), whose sum is σ = 1141938000. Its totient is φ = 323405096.

The previous prime is 649673081. The next prime is 649673153. The reversal of 649673092 is 290376946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356842 + ... + 358657.

It is an arithmetic number, because the mean of its divisors is an integer number (95161500).

Almost surely, 2^649673092 is an apocalyptic number.

It is an amenable number.

649673092 is a deficient number, since it is larger than the sum of its proper divisors (492264908).

649673092 is a wasteful number, since it uses less digits than its factorization.

649673092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715730 (or 715728 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 649673092 is about 25488.6855683066. The cubic root of 649673092 is about 866.0938602227.

The spelling of 649673092 in words is "six hundred forty-nine million, six hundred seventy-three thousand, ninety-two".